β-D-GlcpNAc-(1→4)-β-D-GlcpNAc-(1→4)-β-D-GlcpNAc

(3R,4R,5R,6R)-3-amino-6-(hydroxymethyl)oxane-2,4,5-triol

2-acetamido-2-deoxy-3,4:5,6-di-O-isopropylidene-aldehydo-D-glucose

4-硝基苯基-2-乙酰氨基-2-脱氧-β-D-吡喃葡萄糖苷